Burnishing-machine.



L. A. OASGRAIN.

BURNISHING MACHINE.

APPLICATION rmm 00131, 1910.

Patented Mar.10, 191 1 2 SHEETS-SHEET 1.

witnessea L. A. GASGRAIN.

BURNISHING MACHINE.

APPLICATION FILED 0OT.31,1910.

Patented Mar. 10, 1914.

2 sauces-ant z.

"our.

LOUIS A. CASGRAIN,

MACHINERY COMPANY, OF PAIERSON, NEW JERSEY,

JERSEY.

n WS.

a'rn'r orricn.

A CORPORATION OF NEW BURNISHING-MAGHINE.

Specification of Letters IPatent.

Patented Mar. 10, 191st.

Application filed October 31, 1910. Serial No. 589,939.

To all whom it may concern Be it known that 1, Louis A. Casonmv, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain improvements in Burnishing- Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for smoothing, burnishing or finishing articles of leather, and more particularly to machines of the class employed for setting the edge of shoe soles.

It is the object of the invention to produce a machine-which will finish in a superior manner the face or edge acted upon, and which will permit an operation of this nature to be accomplished in a considerably shorter time than heretofore, and with less effort on the part of the ope -ator.

In the machine forming the preferred embodiment of the invention, I employ a smoothing or burnishing tool and means to impart to the tool a rapid movement along the portion of the stool: acted upon,the stock being held against the tool by the operator, and moved along as parts receive the desired finish. WVhile in contact with the stock and in its movement relative to the face being finished, the tool is given rapid percussional impulses, as by a series of blows imparted by any suitable means, for instance, a rotatable hammer. The rapid impulses given the tool not only accelerate the edge setting operation, on account of the rapid variations in pressure of the tool upon the stock, but also tend to impart improved characteristics to the edge of the sole, the face acted upon being consolidated and hardened by the action of the tool. A very efficient form of hammer mechanism for imparting the rapid pe-rcussio-nal impulses to the tool which I have selected and prefer to use in this connection, comprises a rotatable holder which is constructed to loosely sustain a plurality of hammers in such manner that they may yield upon their impact with the tool carrier. The construction and arrangement of the hammers and their holder is such that upon rotation of the holder the hammers are projected into engaging position with the tool carrier by centrifugal force, and, preferably, suitable means will be employed which is arranged to frictionally resist the yielding movements of the hammers in their holder due to their impact with the tool carr er. lVith this construction the blows do livcred to the tool by the hannners may be nu ideextremely rapid without imposing any 1n]urious strain upon the hammer, and the tool may be moved toward the hammer, more or less, by the stock in the hands of the operator, in order to vary the force of the percussional impulses delivered to the stock, without interfering in any manner with the operation of the hammer.

The tool is preferably mounted to autoi'nat-ically adapt itself to variations in the inclination at which the edge to be set is presented to the tool, so that even contact of the acting face of the tool with the edge of the sole is insured. In the preferred embodiment of the invention this is accoinplishcd by mounting the tool in such man nor that it is supported so as to be movable on an arc of a circle the center of which is exterior to the tool, whereby to accommodate itself to variations in the inclination at which the edge to be set is presented to the tool.

I prefer to heat the tool by frictional means, so applied as to be controllable in a simple manner in order to vary to the extent desired the amount of heat applied to the tool.

An important feature of the invention in this connection comprises an improved arrangement of devices for effecting a line adjustment of these frictional means which devices furthermore have the apacity of acting automatically to reduce the friction when the heat n'oduced thereby exceeds a predetermined limit. In the preferred construction the frictional devices consist of plates of a suitable iruiterial which are normally maintained in yielding contact with the tool carrier by pressure means which is adjustable, and the pressure on the plates is relieved by an cxpansible member when the heat generated by the frictional engagement between the tool carrier and said plates becomes excessive. Under a :onvenient arrangement one of the friction plates is carried by a holder which is so constructed and arranged that it affords a means of adjusting the extent to which the tool carrier, and hence the tool sustained thereby, can be moved toward the hammers by the stock in the hands of the operator and consequently serves to vary the force of the percussional impulses of the hammers without calling for special attention on the part of the operator. I regard this also as an important feature of the invention.

Each tool carrier under the preferred embodiment of the invention will be arranged to support two tools, which are shaped for acting upon the fore part of a sole, and the shank of a sole, respectively.

A further feature of the invention in this connection comprises an improved construction for causing a reversal of the tools, so as to present to the operator the particular tool which is desired for use. The arrangement referred to may conveniently comprise a holder for the two tools which is normally held locked to the tool carrier, by a yielding device, but may be unlocked from the carrier when given a downward movement by the operator. Suitable ball clutches, or similar intermittent gripping devices, located between the tool holder and carrier, are so arranged that the lateral vibratory movements imparted to the carrier serve to effect a step by step rotation of the tool holder until it again comes into position to be locked to the carrier with the relative positions of the tools reversed.

Other features of the invention, including important details of construction and combination of parts, will be hereinafter more particularly described and claimed.

In the drawings: Figure 1, in front elevation, shows a machine embodying my invention in one of the best forms now known to me; Fig. 2 is an elevation enlarged, and looking at the machine from its right hand side, one of the twin parts being in section; Fig. 3 is a view yet further enlarged of part of the tool-carrier and its tools, one of the tools being broken out to better show its connection with the carrier; Fig. 4: is a sec tion in the line at, Fig. 3, looking toward the left; Fig. 5 shows enlarged a part of the front end of the machine, the face plate at the left of Fig. 2 being removed; Fig. 6 is a section to the right of the dotted line 00 Fig. 2; Fig. 7 is a top view showing part of the rock-shaft D and the guideway at its end inclosing the shank of the toolcarrier; Fig. 8 is a detail view in. side elevation, partly sectional, of a modified form of tool holder; and Fig. 9 is a view in horizontal section on the line 99, Fig. 8.

The base A of the machine has bearings to sustain a power shaft A provided with a belt pulley A driven by a belt A actuated from any usual countershaft. The shaft A is provided with a belt pulley A that may drive when desired the main shaft B of the edge setting machine, by a belt B and pulley B. The base A has erected on it a column B that sustains the head B having bearings B to sustain vthe shaft B That the shaft B may be stopped and started at will, the machine has been provided with a belt-tension wheel C surrounding a stud C at the free end of a lever C fulcrumed on a stud Q held in the base.

The lever has pivoted to it at C a spring leg 0 to which is attached a spring C. The leg and spring act to maintain the lever C either in the position shown in Fig. 1 where the wheel C is out of contact with the driving belt 13, as when the shaft B is to remain at rest, or to hold the lever in position to cause the wheel G to tighten the belt B and cause rotation of the shaft B The lever C may be turned by hand to occupy either of the positions referred to.

The head B is shown as double, or of the twin variety, so that two men may work on the same machine, and the shaft B is therefore extended to the right and left of the pulley B, but for a proper understanding of this invention I need describe but one part of the twin'machine.

The outer end of the shaft B has fixed to or forming a part thereof a holder or disk 6 that sustains loosely a series of hammers Z), represented as rollers, said hammers being movably sustained by the holder so that they may yield upon their impact with the tool carrier. The hammers are preferably held outwardly in their effective position by centrifugal force. As one preferred manner of sustaining these hammers I have provided the disk 6 with a series of pockets or recesses 6 extending partway through the disk from its acting face, said pockets being slightly larger in diameter than the diameter of the rollers. As indicated on the drawings, the rapid rotation of the disk causes the rollers to project from the face of the disk 6 into effective position.

I believe that I am the first to use hammer mechanism in which one or more freely movable hammers are moved into operative position by centrifugal action.

Each pocket may be provided with a hardened pin 6 located at one side of the opening in the pocket and arranged to be engaged by the periphery of each roller just as the latter delivers its blow upon the upper end of the tool carrier. The pins 6 by contacting with one edge of each roller act to increase the force of the blow of the hammer for the reason that the pin offers a frictional resistance to the movement of the roller into the pocket, which resistance increases until the roller reaches the limit of its inner movement with its periphery bearing against a wall of the pocket and the hardened pin 6 The shaft B is provided adjacent the pulley B with an eccentric D. This eccentric is embraced by two like slide-blocks 1) one of which, see Fig. 6, contacts with the face of one arm D of the forked upper end of a lever l) which is pinned or otherwise suitably clamped or attached to a rockshaft 13*, and the other slide-blocl contacts with a wear plate D on the other arm D that may be adjusted in any usual manner to compensate for wear. The rock-shaft D turns in bearings (4 preferably composed of non-heat conducting material, such as prepared wood containing a lubricating medium that will resist the passage of heat through the same to the head 13*. The end of each rock-shaft at the front of the head, see Figs. 2 and 7, provided with a down wardly extended guidaway a within which is located the shank of the tool-carrier a, said carrier being retained from lateral movement in said guideway by a cover plate a applied thereto.

The front of the head has attached to it by suitable screws to" a face plate a having, see Fig. 2, at its inner side an annular projection of over which the outer ends of the hammers travel as the shaft 13 is rotated. The face plate sustains at its inner side a friction plate ((7 that contacts with the outer side of the cover a The head at the right hand side of the guide vay, see lfi ig. 2, has a friction plate a that is embraced and sustained .in position by a recessed holder it, having a boss 2 projecting from its rear end that {its a socket 5 formed in the forward end of a steel rod 4. A brass or copper tube 10 is threaded or otherwise secured in a longitudinal bore of the frameand the rear portion of this tube is internallv threaded to receive an adjusting nut 8 having a here to loosely receive the rod 4. A spiral spring t surrounds the rod, and is confined between the rear wall of the socket 5 and the nut 8, which is provided with a series of holes so that by a rod or suitable instrument working through an opening in the tube 10 the nut may be turned to adjust the tension of the spring. In order to adjust the rod relatively to the tube a nut 12 is threaded to the end of the rod and bears against: the rear end of the tube. This nut is provided with an annular projecting flange upon which a split collar 14: is clamped, the collar carrying a spring-pressed detent 15 which is arranged to engage the teeth of a toothed sec/ tor 16 whereby fine adjustment of the nut 12 on the rod may be made. It will be understood that the position occupied by the nut on the rod will determine the extent of forward movement of the rod under the influence of the spring (3, and hence the amount of frictional heat which will be developed by the reciprocation of the tool carrier in contact with the plates (/7 and a This heat will be communicated to the parts adjacent the tools and tool carrier, and as the coellicient of expansion of the tube 10 exceeds that of the rod l the pressure of the holder (4" against the friction plate a will be relieved and the friction reduced as the h sat increases excessively. When the parts cool off the tube will contract and permit the rod to be advanced by the spring (3, to thereby produce more heat on the tool carrier. By this means the amount of heat produced by the frictional devices is automatically controlled.

In addition to the function above described the holder a" may be constructed to afford a means for adjusting the distance that the tool carrier may be moved toward the hammers by the work, and thereby control the force of the blow delivered by the hannners, irrespective of tl amount of pressure which the operator exerts against the tool by the work. As shown herein, see .l ig. l, the holder has an eccentric periphery, and a series of holes 3, as shown at the right of Fig. 2, are formed in the holder to receive a rod or other suitable tool so that the holder may be rotated to bring a thicker or thinner portion of its edge in position to be engaged by a guiding lip (Z, formed or provided at the lower part of the tool carrier. The tool carrier is actuated rapidly in the operation of the nnu' hinc, and the contact of this lip with the holder (4" insures that the reciprocating motion of the tools takes place in a substantially straight rather than a curved line, which is of importance in the action of a tool for setting the edge of a solo.

The plates (1 a, will preferably be of wood saturated with substances suitable to increase their durability and frictional properties.

The tool-carrier has a hole c, and the face plate also has a hole through which is inserted a pin 1: exteiulcd from the rock-shaft l) parallel with its longitudinal axis. This pin, serves as a stop to prevent the tool-carrier from dropping out of the guide-way, and it also serves as a stop to prevent undue upward movement of the tool-rairrier when the tool, to be described, is acting upon the stock.

The lower end of the tool-carrier has an enlargement provided with two dovetail [hinges c, concavcd at their faces, the concavities mn'rcs ionding to arcs of circles whose centers are, respectively, located outside of said. faces and beyond the paths in which said tools slide in adapting themselves to the edges being set. llhcse [hinges are embraced by lips at the upper edges of two tools c, 0 the acting faces of which are somewhat concaved or shaped so that one will ac; upon and set the edge of the shank of a sole, and the other the edge of the fore part of a sole. l lach tool is held in position on said enlargement by a hit-hing device 0, shown as a bolt having a cross-pin acted upon by a spring c, the end of the bolt entering loosely a slot 20 formed in each tool. When the locking device is lifted, one tool may be removed and another tool be substituted.

The loose connection of the tool with the tool carrier enables the tool to slide on the carrier and permit the face of the tool in contact with the stock to adapt itself to any change in position or inclination of the edge of the stock coming under the tool. This inclination of the edge being acted upon by the tool may vary due to the workman who holds in his hand the shoe having the edge to be set. The loose connection of the tool with the tool carrier, and the shape of the concaved portion of the lower end of the tool carrier and of the tool, enables the tool to slide in the arc of a circle described from a point outside the path of movement of the tool. The adaptability of the tool to the edge, however presented, is a very important feature of this invention.

The tools described have imparted to them, it will be understood, very rapid vibrations, and also very rapid impulses due to the strokes of the hammers, and these several movements act to advantage to set, harden, smooth and finish the edge of the sole in a superior manner.

By reason of the arrangement of the ham mers in their holder whereby they are free to yield, subject to the frictional resistance to their yielding movements offered by the pins 5 and the arrangement of the tool car rier in its guideway permitting movements of the tool carrier toward the hammers, the operator is enables to vary the effective pressure of the percussional impulses imparted to the stock by the hammer, which will be determined by the degree of force employed in holding the stock against the tool.

Figs. 8 and 9 illustrate a modified construction of tool carrier for effecting a reversal of the tools when desired, so as to present to the operator the fore-part tool, or the shank tool. The carrier a is provided at its lower portion with a horizontal recess to receive the head of a T-shaped tool holder 120 having a tubular stem 21 which has a sliding fit within a vertical socket in the carrier. A pin 23 has its upper end fastened within the carrier and is provided at its lower end with a head 27. The stem 21 is arranged to inclose and slide over the pin, and a spiral spring 22 surrounds the pin and has bearing at one end against the end wall of the stem and at its lower end against the head 27, so as to hold the head of the tool holder into locking engagement with the horizontal re cess of the carrier. A handle or knob 24 projects forwardly from the holder 120. Between the adjacent walls of the stem 21 and the carrier of, but arranged on opposite sides of a vertical plane central of the stem and parallel with the plane of oscillation of the 'carrier, are two ball clutch members 25 having springs 26 which tend to force the balls into gripping contact with the stem 21. The ball clutches are so arranged that when the knob 24 is pressed down so as to unlock the holder 120 from the carrier the vibratory movement of the carrier will impart a stepby-step movement of rotation to the holder in the direction indicated by the arrow, Fig. 9, until the holder comes into locking relation with the recess in the carrier, into which it will then be drawn by the spring 22.

One of the many useful applications of the machine herein described has been to modify the ordinary welt shoe in such manner as to produce an imitation cork sole therefrom. This operation was made possible by the very rapid percussional impulses imparted to the stock by the hammer mechanism under this invent-ion, and by the capacity for permitting the shoe to be presented to the toolby the operator in an inclined position, afforded by the peculiar arrangement for mounting the tool herein described. In the performance of this operation, a welted shoe is presented to the edge setting tool in such a manner that the tool engages the edge of the welt only, and the operator then brings a suflicient amount of pressure to bear against the shoe to cause the hammer to impart through such tool a series of rapid condensing blows to the welt, forming thereon a rounded and highly polished beaded surface, the welt being thereby reduced in area so as to lie within the edge of the outer sole, and having the appearance of the finished edge of a cork sole superposed upon such outer sole.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine of the class described, an edge setting tool, mechanism for reciprocating said tool relative to the stock in a direction substantially parallel with the face of the stock, and means for imparting to the stock through said tool a series of percussional impulses of high frequency.

2. In a machine of the class described, an edge setting tool, mechanism for giving the tool a rubbing movement along the face of the stock, and means for imparting to said tool in its movement a succession of percussional impulses.

3. In a machine of the class described, an edge setting tool normally in contact with the stock, mechanism for giving the tool a rubbing movement along the face of the stock, and means for imparting to the stock a series of pcrcussional impulses in a direction substantially perpendicular to the line of said rubbing movement of the tool.

4. In a machine of the class described, an edge setting tool, means for reciprocating and mechanism for imparting to said tool,

its movement a succession of said tool in 'apid blows.

5. In a. machine of the class described, a tool, means for reciprocating said tool along the stock and mechanism inchuling yielding means for imparting to said tool in its movement a succession of rapid blows.

6. In a machine of the class described, a tool normally in contact with the stock mechanism for giving the tool a rubbing movement along the stock and mechanism including yielding means for imparting to the steel: through said tool a series oil' pee cussional impulses the pressure of which may be varied by varying the pressure of the stocl; against the tool, 7

T. In a machine of the class described, a tool normally in contact with the stock, mechanism "for reciprocating the tool along the stock, mechanism for imparting to the stock through said tool a series of percussional ll'lll'JtllSCS, including a rotatable holder and a hammer movably sustained therein and means to 'lrictionally resist the movement of the hammer into its holder.

8. In a machine of the class described, a tool carrier: and mechanism tor imparting to said tool carrier a succession ot blows comprising a rotatable holder, and a hammer sustained in a pocket in said holder for tree movements radially to permit a yielding impact upon the tool carrier.

9. iln a machine oil? the class described, a tool and mechanism for imparting to said tool a succession of blows con'iprising a rotatable holder, and a hammer movably sus tained in said holder to permit a yielding impact upon the tool, and means to iEllC- tionally resist the movement of the hammer into its holder.

10. in a machine of the class described, a guideway. a carrier longitudinally movable on said guideway, a tool sustained by the carrier, means for oscillating said guideway to impart a reciprocating movement to the tool along the face of the stock, and mechanism for imparting to said carrier a succession of percussional impulses in a direction substantially in the line of its move ment longitudinally of the guideway.

11. In a machine of the class described, a guideway, a carrier longitudinally movable in said guideway, a. tool sustained by the carrier, means for oscillating said guideway to impart a reciprocating movement to the tool along the face of the stock, and a yield ingly supported hammer for imparting to said carrier a succession of percussioi'ial impulses in a direction substantially in the line of its movement longitudinally of the guide way.

12. guideway,

In a machine of the class described, a a earner longitudmally movable in said guideway, a tool sustained by the carrier, means for oscillating said guidcway to in'ipart a reciprocating movement to the tool along the lace of the stock, and mechanism to impart to said tool carrier at succession oi POICIISSiMlfll impulses, comprising a otatable hold and a hannner movably sustained in said holder to permit a yielding impact upon the tool carrier.

1 In a machine of the class described, an oscillating shatlft provided with a guideway, a carrier longitudinally movable in said euideway, a tool sustained by the carrier, a rotatable sha'lt m'ovided with hammer mechauism to impart to said carrier a series of percussional impulses in the direction of its longitudinal movements in the guideway, and means whereby the last named shaft is caused to impart an oscillating movement to the inst-named shaft and the guideway to reciprocate the tool along the face of the stock.

141'. In a machine of the class described, a shaft mounted in bearings and provided with a guideway and a forked lever, a carrier mounted for movement in said guideway and provided with a tool, a Second shaft mounted in bearings and provided with a hammer arranged to act upon said tool carrier to impart thereto a series oil percussional impulses, said shalt provided with an eccentric which is arranged between the arms of the :lorlced lever to thereby impart oscillating movements to the first-named shaft and the guideway to reciprocate the tool along the face oil? the stock.

15. in a machine oi the class described, a shaft mounted in bearings and provided with a guideway and a :lorked lever, a carrier mounted for movement in said guideway and provided with a tool, a second shaft mounted in bearings and provided with a hammer arranged to act upon said tool carrier to impart thereto a series of percussional impulses. said shalt provided with an eccentric which is arranged between the arms of the "forked lever to thereby impart oscillating movements to the first-named sha l t and the guideway, slide-blocks between the arms of said lever and said eccentric, and an adjustable wear plate between one of said arms and its slide block.

16. In a machine of the class described, a casing. a guideway therein, a carrier longitudinally movable in said guideway, a tool sustained by the carrier, means for oscillating said guideway to impart a reciprocating movement to the tool, and friction means located between the casing and guideway to heat the carrier and its tool.

17. In a machine oi. the class described, a casing, a guideway therein, a carrier longi tudinally movable in said guideway, a tool sustained by the carrier, means for oscillat' ing said guideway to impart a reciprocating movement to the tool, and friction plates located between the walls of the casing and the guideway, a holder sustaining one of said plates, yielding means exerting a pres sure against the holder to maintain frictional engagement between said plates and the guideway, and means to control the pressure of said yielding means.

18. In a machine of the class described, a rcciprocatcry tool, friction means for heating the tool, and means acting automatically to so control the heat developing action of the friction means with relation to the heat developed. as to keep the tool at a substantially constant temperature.

19. In a machine of the class described, a reciprocatory tool, friction means for heat ing the tool, and means acting automatically to reduce the friction when the heat becomes excessive.

20. In a machine of the class described, a reciprocatory tool, friction means for heating the tool, a yielding device for applying pressure to the friction means, and automatic means for relieving said pressure when the heat becomes excessive.

21'. In a machine of the class described, a reciprocatory tool, friction means for heating the tool, means for effecting pressure of the friction means against a moving part, means to adjust said pressure, and automatic means to relieve said pressure when the heat becomes excessive.

In a machine of the class described, a reciprocatory tool, a friction plate for heat ing the tool, a rod connected with said plate, yielding means acting on the rod to apply pressure to the plate, and expansible means acting on the rod reversely to said yielding means to relieve said pressure.

23. In a machine of the class described, a reciprocatory tool, a friction plate for heating the tool, a rod connected with said plate, yielding means acting on the rod to apply pressure to the plate, a tube surrounding said rod and having one end secured against movement, and an abutment on the rod in engagement with the opposite end of the tube, said tube having a higher coeflicient of expansion than said rod whereby the rod is moved in a direction to relieve pressure on the plate when the heat becomes excessive.

24.. In a machine of the class described, a reciprocatory tool, a friction plate for heating the tool, a rod connected with said plate, a tube secured to the machine frame and surrounding said rod, a spring acting on the rod to apply pressure to the plate, and a nut threaded to the rod and bearing against the end of said tube for adjusting said. pressure.

25. In a machine of the class described, a

reciprocatory tool, a friction plate for heat ing the tool, a rod connected with said plate,

a tube secured to the machine frame and surcunding said rod, a spring acting on the rod to apply pressure to the plate, a nut threaded to the rod and bearing against the end of said tube, a spring-actuated detent carried by said nut, and a toothed sector arranged to be engaged by said detent.

26. In a machine of the class described, a reciprocatory tool, a friction plate for heating the tool, a rod connected with said plate, a tube secured to the machine frame and surrounding said rod, an adjusting nut having threaded engagement with the interior of said tube and provided with a bore to receive said rod, a spring confined between said nut and an abutment on the rod, and a nut threaded to the rod and bearing against the end of said tube.

27. In a machine of the class described, a tool, mechanism for imparting t0 the stock through said tool a series of percussional impulses the pressure of which may be varied by varying the pressure of the stock against the tool, and means for adjustably limiting said pressure.

28. In a machine of the class described, a tool normally in contact with the stock, a carrier therefor, means for actuating the carrier to apply to the stock through said tool a series of percussional impulses, and an adjustable stop arranged to be engaged by the carrier for controlling the distance that the carrier is moved toward its actuating means by the stock.

29. In a. machine of the class described, a movable tool carrier, a tool, actuating means for the carrier, a friction plate engaging said carrier, and a holder for said plate arranged to act as an adjustable stop to limit the movement of the carrier toward said actuating means.

30. In a machine of the class described, a movable tool carrier, a tool, actuating means for the carrier, a friction plate engaging said carrier, and a rotary adjustable. holder for said plate having an eccentric-shaped periphery and arranged to limit the movement of the carrier toward said actuating means. 7

31. In a machine of the class described, a casing, a guideway therein, a carrier longitudinally movable in said guideway and provided with a guiding lip, a tool sustained by the carrier, means for oscillating said guideway to impart a reciprocating move ment to the tool, a friction device engaging said carrier, and a holder for said friction device having an edge to engage said lip whereby the tool is guided in a substantially straight line parallel with. the edge of the stock.

82. In a machine of the class described, an edge setting tool, means for sustaining said tool adapted to permit its inclination in a direction transverse to the line of feed of the stock, mechanism for imparting a vibratory i'novement to said tool, means for imparting to said tool in its movement a succession of 1 ercussional impulses, and means for heating the tool by frictionally resisting its vib 'atory movements.

33. In a machine of the class described, an edge setting tool, means for sustaining said tool adapted to permit its inclination in a direction transverse to the line of feed ot the stock, mechanism tor imparting a vibratory movement to said tool in a direction substantially parallel with the taco ot the stock, and means tor imparting to said i tool in its movement a succession of percussional impulses.

3 t. In a machine of the class described, an edge setting tool, and sustaining means thereto-r constructed and arranged to permit the tool to move freely on the are of a circle whose center is exterior to said tool for adapting the face of the tool to variations in the position 0t the stock.

In a machine of the class described, an edge setting tool and sustaining means therefor constructed and arranged to permit said tool to move freely transversely of the line of feed ot the stock on the arc oi. a circle whose center is exterior to said tool tor adapting the face of the tool to variations in the position oi" the stock.

36. In a machine of the class described, an edge setting tool, and supporting means constructed and arranged to permit its inclination in a direction transverse to the line of feed of the stock on the arc of a circle whose center is exterior to said tool in response to changes in the position of the edge of the work.

37. In a. machine of the class described, an edge setting tool, sustaining means therefor adapted to permit said tool to move lirecly transversely of the line of teed ot? the stock on the are of a circle whose center cxterior to said tool to adapt the tool to changes in the imzlination oil the work, and means to limit the extent oi said movements.

39. In a machine of the class des ribed, a movable tool carrier provided with a curved support to receive a tool and a tool movable longitudinally of the support, and means for holding the tool from transverse movement on said support.

99. In a, machine of the class described, a. tool carrier provided with a support and a bolt movable in the support and adapted to be projected from the face thereof, in combination with a tool constructed to move longitudinally of the support across the projected end of the bolt and provided with a groove to receive said bolt.

40. In a machine of the class described, a movable tool carrier having a dove-tailed flange, in combination with a tool constructed to engage said flange, and means to eontine said tool loosely to said tool carrier.

ll. In a machine of the class described, a movable tool carrier having a plurality ot dove-tailed tlanges, in combination with a plurality of tools in engagement with said tlanges, and means to contine said tools loosely to said flanges.

-12. In a machine ot the class described, a tool carrier provided with a support curved in a direction transverse to the line of :teed ot the stock on the arc of a circle whose center is exterior to the tool, in combination with a tool constructed to fit said support and contincd to movements longitudinally thereof, said tool being freely movable along the support in response to changes in the position of the work.

4 3. In a machine oil the class described, a tool carrier provided with a support curved transversely to the line of feed of the stock on the arc of a circle whose center is exterior to the tool amt having outwardly inclined edges, in combination with a tool curved to tit said support; and having flanges shaped to engage said edges, whereby the tool is contined to movements longitudinally of said support, said tool. being freely mow able along the support in response to changes in the position of the work.

t t. In a machine ot the class described, a movable tool carrier prtwidcd with a support curved transversely to the line o't teed ot the stock and a bolt; movable in the support and yicldingly held so as to be projected 't'rom the lace thereof. in combination with a. tool movable longitudinally of the support; but held from transverse movement thereon. said. tool having a groove to receive said bolt.

l5. A. machine of the class described having, in combination, a tool carrier provided with a support curved transversely to the line of feed of the stock; a bolt movable in said support; yielding means to project said bolt beyond the lace ot the simport; means I to limit the amount of such projection; a

tool mounted for movement longitudinally of said support and having a groove to receive said bolt; and means to contine said tool. against movement in a direction transverse to the support.

t'd. In a machine of the class described, a

rotatable holder provided with a. series of pockets in its acting face and a series of laimmers, each of which is substantially circular in cross-section, loosely carried in said pockets and adapted to be held outwardly in e'tlective position by the rotation of the holder.

1-7. In an. edge setting machine, a tool carrier, a tool carried thereby, and a series of centriit'ugally controlled hammers, said parts being constructed and arranged whereby the tool carrier is normally out of the path of the hammers but may be moved by the stock into the path of the hammers.

48. In a machine of the class described, a rotatable holder and a series of loose hammers carried thereby, in combination with a tool carrier normally out of the path of said hammers but adapted to be moved by the stock into the path of said hammers.

49. In a machine of the class described, a rotatable hammer, means to rotate said hammer, an oscillatory tool carrier normally out of the path of said hammer, and means to oscillate the carrier adapted to permit its movement into the path of the hammer.

50. In an edge setting machine, a tool carrier provided with two curved supports which are respectively located at different levels thereon, and two tools arranged for longitudinal movement on said supports, and held from transverse movement thereon.

51. In an edge setting machine, a tool carrier provided at different levels thereon with two concaved supports whose curvatures corespond, respectively, with the arcs of circles the centers of which are located exterior to said tool carrier, and a tool arranged to move longitudinally of each support and held from transverse movement thereon.

52. In an edge setting machine, a tool carrier provided at different levels thereon with two concaved supports whose curvatures correspond, respectively, with the arcs oi circles the centers of which are located exterior to said tool carrier, one of said supports being located in front of the other, and a tool arranged to move longitudinally of each support and held from transverse movement thereon.

53. Ina machine of the class described, a carrier, a plurality of tools sustained thereby and automatic intermittent gripping means for imparting a step-by-step movement to the carrier to cause a reversal of the position of said tools in the carrier.

54-. In a machine of the class described, a reciprocatory carrier, a plurality of tools movably sustained thereby, and means ac mated by the movement of the carrier to reverse the position of said tools.

55. In a machine of the class described, a reciprocatory carrier, a plurality of tools arranged to have locking engagement therewith, and means actuated by the movement of the carrier to cause a reversal of the position of the tools when said tools are moved out of locking engagement with the carrier.

56. In a machine of the class described, a reciprocato-ry carrier, a plurality of tools arranged to be locked to the carrier with either tool in position for operation, yielding means for holding the tools in locked relation to the carrier, and means actuated by the movement of the carrier for reversing the position of the tools when released from such relation.

57. In a machine of the class described, a reciprocatory carrier provided with a recess, a tool holder rotatably mounted in the carrier and having a flange to enter said recess, yielding means to effect engagement between said parts, a plurality of tools carried by the holder, and means between the carrier and holder to effect a rotation of the holder and reverse the position of the tools when said holder is unlocked from the carmen 58. In a machine of the class described,

a reciprocatory carrier provided with a recess, a tool holder rotatably mounted in the carrier and having a flange to enter said recess, yielding means to effect engagement between said parts, a plurality of tools carried by the holder, and intermittent grip devices between the carrier and holder to effect stepby-step rotation of the holder and reverse the position of the tools when said holder is unlocked from the carrier.

59. In a machine of the class described, an edge setting tool, means for vibrating the tool along the edge of the welt of a shoe and means for imparting through the tool a series of rapid condensing blows to the welt.

60. In a machine of the class described, an edge setting tool, means for developing heat in the tool, means under the control or the operative for determining the amount of heat to be developed, and automatic means for maintaining the amount of developed heat substantially uniform.

In testimony whereof I have signed my name to this specification in the presence of no subscribing witnesses.

LOUIS A. CASGRAIN. Witnesses:

JOHN H. MGCREADY, FREDERICK L. EDMANDS.

caplet of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. (2. 

